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12411631 = 55722283
BaseRepresentation
bin101111010110…
…001011101111
3212100120120001
4233112023233
511134133011
61122005131
7210332341
oct57261357
925316501
1012411631
117008051
1241a67a7
13275747b
141911291
1511527c1
hexbd62ef

12411631 has 4 divisors (see below), whose sum is σ = 12434472. Its totient is φ = 12388792.

The previous prime is 12411601. The next prime is 12411647. The reversal of 12411631 is 13611421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13611421 = 26595119.

It is a cyclic number.

It is not a de Polignac number, because 12411631 - 25 = 12411599 is a prime.

It is a super-2 number, since 2×124116312 = 308097168160322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12411599 and 12411608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12411601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10585 + ... + 11698.

It is an arithmetic number, because the mean of its divisors is an integer number (3108618).

Almost surely, 212411631 is an apocalyptic number.

12411631 is a deficient number, since it is larger than the sum of its proper divisors (22841).

12411631 is an equidigital number, since it uses as much as digits as its factorization.

12411631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22840.

The product of its digits is 144, while the sum is 19.

The square root of 12411631 is about 3523.0144762689. The cubic root of 12411631 is about 231.5312510777.

The spelling of 12411631 in words is "twelve million, four hundred eleven thousand, six hundred thirty-one".

Divisors: 1 557 22283 12411631